JadenGeller

// Now availbile as a Swift package on GitHub!
// https://github.com/jadengeller/fractional

public typealias Fraction = Fractional<Int>

private func gcd<Number: IntegerType>(var lhs: Number, var _ rhs: Number) -> Number {
	while rhs != 0 { (lhs, rhs) = (rhs, lhs % rhs) }
	return lhs
}
	

mattt

// See: https://devforums.apple.com/message/1000934#1000934

import Foundation

// Logic

operator prefix ¬ {}
@prefix func ¬ (value: Bool) -> Bool {
    return !value
}

Set.swift

import Swift

struct SetGenerator<T : Hashable> : Generator {
    var dictGenerator : DictionaryGenerator<T, Void>
    
    init(_ d : Dictionary<T,Void>) {
        dictGenerator = d.generate()
    }
    

jianpx

http://devstreaming.apple.com/videos/wwdc/2014/403xxksrj0qs8c0/403/403_hd_intermediate_swift.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/403xxksrj0qs8c0/403/403_sd_intermediate_swift.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/403xxksrj0qs8c0/403/403_intermediate_swift.pdf?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/419xxli6f60a6bs/419/419_hd_advanced_graphics_and_animation_performance.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/419xxli6f60a6bs/419/419_sd_advanced_graphics_and_animation_performance.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/419xxli6f60a6bs/419/419_advanced_graphics_and_animation_performance.pdf?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/101xx36lr6smzjo/101/101_hd.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/101xx36lr6smzjo/101/101_sd.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2014/236xxwk3fv82sx2/236/236_hd_building_interruptible_and_responsive_interactions.mov?dl=1
http://devstreaming.apple.com/videos/wwdc/2

calebd

extension Array {
    
    func first() -> Element? {
        if isEmpty {
            return nil
        }
        return self[0]
    }
    
    func last() -> Element? {

jeremytregunna

//
//  NudgeModel.h
//  NudgeFoundation
//
//  Created by Jeremy Tregunna on 10/7/2013.
//  Copyright (c) 2013 Jeremy Tregunna. All rights reserved.
//

#import <Foundation/Foundation.h>

mattt

Generate the list yourself:

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.sdk/System/Library/Frameworks/UIKit.framework/Headers
$ grep UI_APPEARANCE_SELECTOR ./*     | \
  sed 's/NS_AVAILABLE_IOS(.*)//g'     | \
  sed 's/NS_DEPRECATED_IOS(.*)//g'    | \
  sed 's/API_AVAILABLE(.*)//g'        | \
  sed 's/API_UNAVAILABLE(.*)//g'      | \
 sed 's/UI_APPEARANCE_SELECTOR//g' | \

beelsebob

#import <UIKit/UIKit.h>

@class BDSegmentedControl;

@protocol BDSegmentedControlDelegate <NSObject>

- (NSUInteger)segmentedControl:(BDSegmentedControl *)segmentedControl numberOfMenuItemsForSegmentAtIndex:(NSUInteger)segmentIndex;
- (UIImage *)segmentedControl:(BDSegmentedControl *)segmentedControl imageForMenuBackgroundForSegmentAtIndex:(NSUInteger)segmentIndex;
- (UIImage *)segmentedControl:(BDSegmentedControl *)segmentedControl imageForMenuItemAtIndex:(NSUInteger)menuItemIndex forSegmentAtIndex:(NSUInteger)segmentIndex;
- (UIImage *)segmentedControl:(BDSegmentedControl *)segmentedControl imageForSelectedMenuItemAtIndex:(NSUInteger)menuItemIndex forSegmentAtIndex:(NSUInteger)segmentIndex;

mikeash

#import <dlfcn.h>
#import <Foundation/Foundation.h>


struct BlockDescriptor
{
    unsigned long reserved;
    unsigned long size;
    void *rest[1];

mikeash

dispatch_block_t RecursiveBlock(void (^block)(dispatch_block_t recurse))
{
    // assuming ARC, so no explicit copy
    return ^{ block(RecursiveBlock(block)); };
}

typedef void (^OneParameterBlock)(id parameter);

OneParameterBlock RecursiveBlock1(void (^block)(OneParameterBlock recurse, id parameter))
{